Orlando’s Moonstone Music Festival, which was scheduled for April 30 and May 1 at the Central Florida Fairgrounds has been postponed to September due to what organizers are calling “a major cyber fraud crime.”

In a statement on the festival’s website, organizers say the event, which was to feature Kiss, Def Leppard, the Flaming Lips and others, will now take place Sept. 24 and 25, is now at the center of an investigation by local law enforcement and the FBI as a result “of cyber fraud involving a major Tampa, Florida bank and other local businesses.”

“At this time, we need to focus our efforts on this investigation,” festival founder Paul Lovett said in the statement. “Because of this situation, we know our attention to the inaugural Moonstone might suffer and we want to ensure an amazing experience for everyone who attends the festival in September.”

The festival was already a big question mark in Florida’s spring music calendar. The main stage of its proposed venue, the Fairgrounds’ new 10,000-capacity Orlando Amphitheater, is still under construction and not expected to open until April 22.